The film has the makings of a cult classic. Joss Whedon was the first writer to be involved with the film but soon left to work on other Disney projects. According to him, he "had not a shred" in the movie, which is a shame. The artistic style comes from the same hand as the creator of "Hellboy", which probably attracted a certain audience. And the protagonist is a descendant of the the legendary Blackbeard, which opened up some interesting world-building possibilities.
But the story is not as good as it could be, and the idea of different languages is cool but simplistic. The idea that a language an be translated letter by letter in nonsense, on top of the fact that "Iceland" and "Ireland" would both be in English... that is a bit silly.